Answer:
Option c. is correct
Step-by-step explanation:
The standard deviation is a measure of the amount of dispersion in a set of values.
Mean of a normal distribution (m) = 154
Standard deviation (s) = 15
z-score = 2.2
To find: value (x) that has a z-score of 2.2
z-score is given by
Put
Option c.is correct
The answer is c because
when you y -1 = ( x - 5)
1- 1 = 5 -5
0 = 0
where A y - 5 = ( x - 1)
1 - 5 = ( 5 - 1 )
-4 dosenot equal 4
Answer: 4
Step-by-step explanation:
I got it right when i did my math
Answer:
a. yes
b = 0.0563
c. 0.1460
d. 0.7560
Step-by-step explanation:
a. Yes. n = 10 identical trials with two possible outcomes on each with p = 0.25.
b. p(x= 0) = 10!/(0!*10!)* .250* .7510= 1 * 1 * 0.0563 = 0.0563.
c. p(x= 4) = 10!/(4!*6!)* .254* .756= 210 * .0039 * 0.1780 = 0.1460
d. p(x= 1) = 10!/(1!*9!)* .251* .759= 10 * .25 * 0.0751 = 0.1877
p(x≥ 2) =1 - p(x< 2) = 1 – (0.0563 + 0.1877) =0 .7560
A1 = 3 and an = an − 1 − 3
a1 = 2 and an = an − 1 + 0.5